Xanthogranulomatous cystitis with malacoplakia, leading to spontaneous intraperitoneal perforation of the urinary bladder in a 9-year-old girl.

A 9-year-old girl presented with sudden onset continuous abdomen pain, oliguria and constipation for 2 days. Ultrasound of the abdomen and voiding cystourethrography revealed intraperitoneal perforation of the urinary bladder. Cystoscopy showed two perforations at the dome of the bladder. Open surgical repair of the perforations was performed and biopsy was taken from their edges. Histopathological examination of biopsied material revealed malacoplakia with xanthogranulomatous cystitis. The patient was doing well at 15 months follow-up. Xanthogranulomatous cystitis with malacoplakia leading to spontaneous bladder perforation has not been reported earlier in the English literature. 2015 BMJ Publishing Group Ltd.